<?php 
    require '../cfg/config.inc'; 
    header("Content-type:text/html;charset=utf-8"); 
    $path = $_GET['path'];
    $name = $_GET['name'];
    
    $file_path=DIR_ROOT.$path; 
    //首先要判断给定的文件存在与否 
    if(!file_exists($file_path)){ 
        echo "没有该文件文件"; 
        return ; 
    } 
    $fp=fopen($file_path,"r"); 
    $file_size=filesize($file_path); 

    $file_name = basename($file_path);
    $nfext=".".strtolower(pathinfo($file_name, PATHINFO_EXTENSION));
    //$file_name = $name.$nfext;
    $file_name = $name;
    $file_name=iconv("utf-8","gb2312",$file_name); 

    //下载文件需要用到的头 
    Header("Content-type: application/octet-stream"); 
    Header("Accept-Ranges: bytes"); 
    Header("Accept-Length:".$file_size); 
    Header("Content-Disposition: attachment; filename=".$file_name); 
    $buffer=1024; 
    $file_count=0; 
    //向浏览器返回数据 
    while(!feof($fp) && $file_count<$file_size){ 

        $file_con=fread($fp,$buffer); 
        $file_count+=$buffer; 
        echo $file_con; 
    } 
    fclose($fp); 
?>